63968364 has 72 divisors (see below), whose sum is σ = 174436080. Its totient is φ = 19699200.

The previous prime is 63968347. The next prime is 63968369. The reversal of 63968364 is 46386936.

63968364 is a `hidden beast` number, since 639 + 6 + 8 + 3 + 6 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (63968369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26904 + ... + 29184.

Almost surely, 2^63968364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63968364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87218040).

63968364 is an abundant number, since it is smaller than the sum of its proper divisors (110467716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63968364 is a wasteful number, since it uses less digits than its factorization.

63968364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351 (or 2346 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 63968364 is about 7998.0225055947. The cubic root of 63968364 is about 399.9340808039.

The spelling of 63968364 in words is "sixty-three million, nine hundred sixty-eight thousand, three hundred sixty-four".